I've had this fabric in my stash for a long time (it waited patiently in a box of 'special fabrics' for 2 years while we were in Aus). I'm pretty sure it's an old curtain. It had some curtain tape type thing along one side. The rest of it acts like a heavy cotton or flexible linen.
I really enjoyed using this Maison Fleur pattern which I won recently. At the beginning the pattern runs through the sewing sequence in bullet points which means if you are an experienced sewist you could essentially just follow that. Other than that it’s very step by step, good explanations and illustrations. It’s a PDF pattern with layered options so you can just print the size you want.